Pentachaeta bellidiflora

Greene

Bull. Calif. Acad. Sci. 1: 86. 1885.

Common names: White-rayed pentachaeta
EndemicConservation concern
Synonyms: Chaetopappa bellidiflora (Greene) D. D. Keck
Treatment appears in FNA Volume 20. Treatment on page 48. Mentioned on page 47.

Plants 6–17 cm. Stems simple or with 1–2 primary branches, glabrous or sparsely hirsuto-pilose. Leaf-blades linear, 8–45 × ca. 1 mm (glabrous or margins ciliate). Involucres campanulate. Phyllaries in 2–3 series, elliptic to obovate, glabrous. Ray-florets 5–16; corollas white, sometimes reddish-tinged abaxially, laminae 3–6 mm. Disc-florets 16–38; corollas yellow, narrowly funnelform, not contracted at lobes, lobes 5. Pappi usually of 5 bristles slightly or not dilated at bases, rarely 0.2n = 18.


Phenology: Flowering Mar–May.
Habitat: Grassy, rocky areas
Elevation: 0–700 m

Discussion

Of conservation concern.

Pentachaeta bellidiflora grows in the San Francisco Bay region.

Selected References

None.

Lower Taxa

None.
... more about "Pentachaeta bellidiflora"
sparsely +  and eglandular +
hirsuto-pilose +  and glabrous +
not tailed +, rounded +  and obtuse +
distinct +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
spiciform +, racemiform +, paniculiform +  and corymbiform +
indeterminate +  and determinate +
Guy L. Nesom +
Greene +
decurrent +
compound +  and simple +
narrowly oblanceolate;linear or filiform +
rugulose +  and muricate +
White-rayed pentachaeta +
not 2-lipped +  and actinomorphic +
yellow +, reddish-tinged +  and white +
subterete +  and slightly compressed +
fertile +  and bisexual +
fertile +  and bisexual +
0–700 m +
pilose +  and glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Grassy, rocky areas +
discoid +  and disciform +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
campanulate +
0.2 cm2 mm <br />0.002 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
cauline +  and basal +
triangular +
2-carpellate +
persistent +
not dilated +
Flowering Mar–May. +
elliptic +  and obovate +
Bull. Calif. Acad. Sci. +
bearing subulate enations +, hairy +  and bristly +
flat;slightly convex +
exalbuminous +
unequal +
Endemic +  and Conservation concern +
with 1-2 primary branches +  and simple +
erect +  and ascending +
hirsuto-pilose +  and glabrous +
appendaged +  and truncate +
papillate +  and smooth +
Chaetopappa bellidiflora +
Pentachaeta bellidiflora +
Pentachaeta +
species +
clavate +  and linear-tubular +
2 cm20 mm <br />0.02 m <br /> (48 cm480 mm <br />0.48 m <br />) +